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-rw-r--r--changelog.d/9608.misc1
-rw-r--r--stubs/txredisapi.pyi2
-rw-r--r--synapse/http/client.py12
-rw-r--r--synapse/replication/tcp/handler.py4
-rw-r--r--synapse/replication/tcp/protocol.py9
-rw-r--r--synapse/replication/tcp/redis.py2
-rw-r--r--tests/replication/_base.py44
-rw-r--r--tests/server.py2
8 files changed, 42 insertions, 34 deletions
diff --git a/changelog.d/9608.misc b/changelog.d/9608.misc
new file mode 100644
index 0000000000..14c7b78dd9
--- /dev/null
+++ b/changelog.d/9608.misc
@@ -0,0 +1 @@
+Fix incorrect type hints.
diff --git a/stubs/txredisapi.pyi b/stubs/txredisapi.pyi
index 34787e0b1e..080ca40287 100644
--- a/stubs/txredisapi.pyi
+++ b/stubs/txredisapi.pyi
@@ -19,7 +19,7 @@ from typing import Any, List, Optional, Type, Union
 
 from twisted.internet import protocol
 
-class RedisProtocol:
+class RedisProtocol(protocol.Protocol):
     def publish(self, channel: str, message: bytes): ...
     async def ping(self) -> None: ...
     async def set(
diff --git a/synapse/http/client.py b/synapse/http/client.py
index d4ab3a2732..1e01e0a9f2 100644
--- a/synapse/http/client.py
+++ b/synapse/http/client.py
@@ -45,7 +45,9 @@ from twisted.internet.interfaces import (
     IHostResolution,
     IReactorPluggableNameResolver,
     IResolutionReceiver,
+    ITCPTransport,
 )
+from twisted.internet.protocol import connectionDone
 from twisted.internet.task import Cooperator
 from twisted.python.failure import Failure
 from twisted.web._newclient import ResponseDone
@@ -760,6 +762,8 @@ class BodyExceededMaxSize(Exception):
 class _DiscardBodyWithMaxSizeProtocol(protocol.Protocol):
     """A protocol which immediately errors upon receiving data."""
 
+    transport = None  # type: Optional[ITCPTransport]
+
     def __init__(self, deferred: defer.Deferred):
         self.deferred = deferred
 
@@ -771,18 +775,21 @@ class _DiscardBodyWithMaxSizeProtocol(protocol.Protocol):
             self.deferred.errback(BodyExceededMaxSize())
             # Close the connection (forcefully) since all the data will get
             # discarded anyway.
+            assert self.transport is not None
             self.transport.abortConnection()
 
     def dataReceived(self, data: bytes) -> None:
         self._maybe_fail()
 
-    def connectionLost(self, reason: Failure) -> None:
+    def connectionLost(self, reason: Failure = connectionDone) -> None:
         self._maybe_fail()
 
 
 class _ReadBodyWithMaxSizeProtocol(protocol.Protocol):
     """A protocol which reads body to a stream, erroring if the body exceeds a maximum size."""
 
+    transport = None  # type: Optional[ITCPTransport]
+
     def __init__(
         self, stream: BinaryIO, deferred: defer.Deferred, max_size: Optional[int]
     ):
@@ -805,9 +812,10 @@ class _ReadBodyWithMaxSizeProtocol(protocol.Protocol):
             self.deferred.errback(BodyExceededMaxSize())
             # Close the connection (forcefully) since all the data will get
             # discarded anyway.
+            assert self.transport is not None
             self.transport.abortConnection()
 
-    def connectionLost(self, reason: Failure) -> None:
+    def connectionLost(self, reason: Failure = connectionDone) -> None:
         # If the maximum size was already exceeded, there's nothing to do.
         if self.deferred.called:
             return
diff --git a/synapse/replication/tcp/handler.py b/synapse/replication/tcp/handler.py
index ee909f3fc5..a8894beadf 100644
--- a/synapse/replication/tcp/handler.py
+++ b/synapse/replication/tcp/handler.py
@@ -302,7 +302,7 @@ class ReplicationCommandHandler:
                 hs, outbound_redis_connection
             )
             hs.get_reactor().connectTCP(
-                hs.config.redis.redis_host,
+                hs.config.redis.redis_host.encode(),
                 hs.config.redis.redis_port,
                 self._factory,
             )
@@ -311,7 +311,7 @@ class ReplicationCommandHandler:
             self._factory = DirectTcpReplicationClientFactory(hs, client_name, self)
             host = hs.config.worker_replication_host
             port = hs.config.worker_replication_port
-            hs.get_reactor().connectTCP(host, port, self._factory)
+            hs.get_reactor().connectTCP(host.encode(), port, self._factory)
 
     def get_streams(self) -> Dict[str, Stream]:
         """Get a map from stream name to all streams."""
diff --git a/synapse/replication/tcp/protocol.py b/synapse/replication/tcp/protocol.py
index 8e4734b59c..825900f64c 100644
--- a/synapse/replication/tcp/protocol.py
+++ b/synapse/replication/tcp/protocol.py
@@ -56,6 +56,7 @@ from prometheus_client import Counter
 from zope.interface import Interface, implementer
 
 from twisted.internet import task
+from twisted.internet.tcp import Connection
 from twisted.protocols.basic import LineOnlyReceiver
 from twisted.python.failure import Failure
 
@@ -145,6 +146,10 @@ class BaseReplicationStreamProtocol(LineOnlyReceiver):
     (if they send a `PING` command)
     """
 
+    # The transport is going to be an ITCPTransport, but that doesn't have the
+    # (un)registerProducer methods, those are only on the implementation.
+    transport = None  # type: Connection
+
     delimiter = b"\n"
 
     # Valid commands we expect to receive
@@ -189,6 +194,7 @@ class BaseReplicationStreamProtocol(LineOnlyReceiver):
 
         connected_connections.append(self)  # Register connection for metrics
 
+        assert self.transport is not None
         self.transport.registerProducer(self, True)  # For the *Producing callbacks
 
         self._send_pending_commands()
@@ -213,6 +219,7 @@ class BaseReplicationStreamProtocol(LineOnlyReceiver):
                 logger.info(
                     "[%s] Failed to close connection gracefully, aborting", self.id()
                 )
+                assert self.transport is not None
                 self.transport.abortConnection()
         else:
             if now - self.last_sent_command >= PING_TIME:
@@ -302,6 +309,7 @@ class BaseReplicationStreamProtocol(LineOnlyReceiver):
     def close(self):
         logger.warning("[%s] Closing connection", self.id())
         self.time_we_closed = self.clock.time_msec()
+        assert self.transport is not None
         self.transport.loseConnection()
         self.on_connection_closed()
 
@@ -399,6 +407,7 @@ class BaseReplicationStreamProtocol(LineOnlyReceiver):
     def connectionLost(self, reason):
         logger.info("[%s] Replication connection closed: %r", self.id(), reason)
         if isinstance(reason, Failure):
+            assert reason.type is not None
             connection_close_counter.labels(reason.type.__name__).inc()
         else:
             connection_close_counter.labels(reason.__class__.__name__).inc()
diff --git a/synapse/replication/tcp/redis.py b/synapse/replication/tcp/redis.py
index 7cccde097d..2f4d407f94 100644
--- a/synapse/replication/tcp/redis.py
+++ b/synapse/replication/tcp/redis.py
@@ -365,6 +365,6 @@ def lazyConnection(
     factory.continueTrying = reconnect
 
     reactor = hs.get_reactor()
-    reactor.connectTCP(host, port, factory, timeout=30, bindAddress=None)
+    reactor.connectTCP(host.encode(), port, factory, timeout=30, bindAddress=None)
 
     return factory.handler
diff --git a/tests/replication/_base.py b/tests/replication/_base.py
index 20940c8107..67b7913666 100644
--- a/tests/replication/_base.py
+++ b/tests/replication/_base.py
@@ -13,9 +13,7 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 import logging
-from typing import Any, Callable, Dict, List, Optional, Tuple
-
-import attr
+from typing import Any, Callable, Dict, List, Optional, Tuple, Type
 
 from twisted.internet.interfaces import IConsumer, IPullProducer, IReactorTime
 from twisted.internet.protocol import Protocol
@@ -158,10 +156,8 @@ class BaseStreamTestCase(unittest.HomeserverTestCase):
         # Set up client side protocol
         client_protocol = client_factory.buildProtocol(None)
 
-        request_factory = OneShotRequestFactory()
-
         # Set up the server side protocol
-        channel = _PushHTTPChannel(self.reactor, request_factory, self.site)
+        channel = _PushHTTPChannel(self.reactor, SynapseRequest, self.site)
 
         # Connect client to server and vice versa.
         client_to_server_transport = FakeTransport(
@@ -183,7 +179,7 @@ class BaseStreamTestCase(unittest.HomeserverTestCase):
         server_to_client_transport.loseConnection()
         client_to_server_transport.loseConnection()
 
-        return request_factory.request
+        return channel.request
 
     def assert_request_is_get_repl_stream_updates(
         self, request: SynapseRequest, stream_name: str
@@ -237,7 +233,7 @@ class BaseMultiWorkerStreamTestCase(unittest.HomeserverTestCase):
         if self.hs.config.redis.redis_enabled:
             # Handle attempts to connect to fake redis server.
             self.reactor.add_tcp_client_callback(
-                "localhost",
+                b"localhost",
                 6379,
                 self.connect_any_redis_attempts,
             )
@@ -392,10 +388,8 @@ class BaseMultiWorkerStreamTestCase(unittest.HomeserverTestCase):
         # Set up client side protocol
         client_protocol = client_factory.buildProtocol(None)
 
-        request_factory = OneShotRequestFactory()
-
         # Set up the server side protocol
-        channel = _PushHTTPChannel(self.reactor, request_factory, self._hs_to_site[hs])
+        channel = _PushHTTPChannel(self.reactor, SynapseRequest, self._hs_to_site[hs])
 
         # Connect client to server and vice versa.
         client_to_server_transport = FakeTransport(
@@ -421,7 +415,7 @@ class BaseMultiWorkerStreamTestCase(unittest.HomeserverTestCase):
         clients = self.reactor.tcpClients
         while clients:
             (host, port, client_factory, _timeout, _bindAddress) = clients.pop(0)
-            self.assertEqual(host, "localhost")
+            self.assertEqual(host, b"localhost")
             self.assertEqual(port, 6379)
 
             client_protocol = client_factory.buildProtocol(None)
@@ -453,21 +447,6 @@ class TestReplicationDataHandler(GenericWorkerReplicationHandler):
             self.received_rdata_rows.append((stream_name, token, r))
 
 
-@attr.s()
-class OneShotRequestFactory:
-    """A simple request factory that generates a single `SynapseRequest` and
-    stores it for future use. Can only be used once.
-    """
-
-    request = attr.ib(default=None)
-
-    def __call__(self, *args, **kwargs):
-        assert self.request is None
-
-        self.request = SynapseRequest(*args, **kwargs)
-        return self.request
-
-
 class _PushHTTPChannel(HTTPChannel):
     """A HTTPChannel that wraps pull producers to push producers.
 
@@ -479,7 +458,7 @@ class _PushHTTPChannel(HTTPChannel):
     """
 
     def __init__(
-        self, reactor: IReactorTime, request_factory: Callable[..., Request], site: Site
+        self, reactor: IReactorTime, request_factory: Type[Request], site: Site
     ):
         super().__init__()
         self.reactor = reactor
@@ -510,6 +489,11 @@ class _PushHTTPChannel(HTTPChannel):
         request.responseHeaders.setRawHeaders(b"connection", [b"close"])
         return False
 
+    def requestDone(self, request):
+        # Store the request for inspection.
+        self.request = request
+        super().requestDone(request)
+
 
 class _PullToPushProducer:
     """A push producer that wraps a pull producer."""
@@ -597,6 +581,8 @@ class FakeRedisPubSubServer:
 class FakeRedisPubSubProtocol(Protocol):
     """A connection from a client talking to the fake Redis server."""
 
+    transport = None  # type: Optional[FakeTransport]
+
     def __init__(self, server: FakeRedisPubSubServer):
         self._server = server
         self._reader = hiredis.Reader()
@@ -641,6 +627,8 @@ class FakeRedisPubSubProtocol(Protocol):
 
     def send(self, msg):
         """Send a message back to the client."""
+        assert self.transport is not None
+
         raw = self.encode(msg).encode("utf-8")
 
         self.transport.write(raw)
diff --git a/tests/server.py b/tests/server.py
index 863f6da738..2287d20076 100644
--- a/tests/server.py
+++ b/tests/server.py
@@ -16,6 +16,7 @@ from twisted.internet.interfaces import (
     IReactorPluggableNameResolver,
     IReactorTCP,
     IResolverSimple,
+    ITransport,
 )
 from twisted.python.failure import Failure
 from twisted.test.proto_helpers import AccumulatingProtocol, MemoryReactorClock
@@ -467,6 +468,7 @@ def get_clock():
     return clock, hs_clock
 
 
+@implementer(ITransport)
 @attr.s(cmp=False)
 class FakeTransport:
     """
generated by cgit-pink 1.4.1 (git 2.36.1) at 2024-11-13 06:31:11 +0000